partialdef tag embedded in verbatim tag is treated as the source property for that named partial

[Jacob Walls]

Although partial and partialdef are correctly ignored when rendered if embedded within {% verbatim %}, the PartialTemplate.source property is fooled, potentially impacting error reporting:

    @setup(
        {
            "partial_embedded_in_verbatim": (
                "{% verbatim %}\n"
                "{% partialdef testing-name %}\n"
                "{% endverbatim %}\n"
                "{% partialdef testing-name %}\n"
                "<p>Content</p>\n"
                "{% endpartialdef %}\n"
            ),
        },
        test_once=True,
    )
    def test_partial_template_embedded_in_verbatim(self):
        template = self.engine.get_template("partial_embedded_in_verbatim")
        partial_template = template.extra_data["partials"]["testing-name"]
        self.assertIn("Content", partial_template.source)

======================================================================
FAIL: test_partial_template_embedded_in_verbatim (template_tests.syntax_tests.test_partials.PartialTagTests.test_partial_template_embedded_in_verbatim)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/jwalls/django/django/test/utils.py", line 458, in inner
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/Users/jwalls/django/tests/template_tests/utils.py", line 58, in inner
    func(self)
  File "/Users/jwalls/django/tests/template_tests/syntax_tests/test_partials.py", line 676, in test_partial_template_embedded_in_verbatim
    self.assertIn("Content", partial_template.source)
AssertionError: 'Content' not found in ''

---

The use case presented here isn't very serious, so I'm loathe to really mark this as a release blocker, but as it's a new feature and that's our process, and I'm not sure if there are other more important uses of the source property, I'll start there.

[Natalia Bidart]

Thank you Jacob, I agree that we should treat as release blocker.

[Jacob Walls]

Replaced the sketched regression test, feel free to make further improvements.